87599099578 has 4 divisors (see below), whose sum is σ = 131398649370. Its totient is φ = 43799549788.

The previous prime is 87599099573. The next prime is 87599099611.

87599099578 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83205133209 + 4393966369 = 288453^2 + 66287^2 .

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87599099573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21899774893 + ... + 21899774896.

Almost surely, 2^87599099578 is an apocalyptic number.

87599099578 is a deficient number, since it is larger than the sum of its proper divisors (43799549792).

87599099578 is a wasteful number, since it uses less digits than its factorization.

87599099578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43799549791.

The product of its (nonzero) digits is 514382400, while the sum is 76.

The spelling of 87599099578 in words is "eighty-seven billion, five hundred ninety-nine million, ninety-nine thousand, five hundred seventy-eight".